9p: disallow RDMA if RDMA CM isn't available
Roland Dreier [Thu, 15 Jan 2009 21:51:29 +0000 (13:51 -0800)]
If INET=y and INFINIBAND=y, but IPV6=m then INFINIBAND_ADDR_TRANS is set
to n and the RDMA CM functions rdma_connect() et al are not built.
However, the current config dependencies allow NET_9P_RDMA to be selected
in this, which leads to a build failure.  Fix this by adding a dependency
on INFINIBAND_ADDR_TRANS to disallow NET_9P_RDMA in this case.

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

net/9p/Kconfig

index 0663f99..7ed75c7 100644 (file)
@@ -23,7 +23,7 @@ config NET_9P_VIRTIO
          guest partitions and a host partition.
 
 config NET_9P_RDMA
-       depends on INET && INFINIBAND && EXPERIMENTAL
+       depends on INET && INFINIBAND && INFINIBAND_ADDR_TRANS && EXPERIMENTAL
        tristate "9P RDMA Transport (Experimental)"
        help
          This builds support for an RDMA transport.